/Engine/Plugins/Interchange/Runtime/Source/Nodes/Public/InterchangeMeshNode.h
This function allow to retrieve an asset instance this scene node is refering.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Interchange | Node | Mesh") void GetSceneInstanceUid ( const int32 Index, [FString](API\Runtime\Core\Containers\FString) & OutDependency ) const